Joseph G. Petrosinelli


Partner, Williams & Connolly, LLP, Adjunct Professor of Law

A.B., Brown; J.D., Georgetown

A.B., Brown; J.D. magna cum laude, Georgetown.  Joe Petrosinelli has an active civil and government investigations/criminal litigation practice. He has tried numerous cases in federal...

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A.B., Brown; J.D. magna cum laude, Georgetown.  Joe Petrosinelli has an active civil and government investigations/criminal litigation practice. He has tried numerous cases in federal and state courts, and also has represented clients in litigation and government investigations matters in Europe, Africa, India, Latin America, and the Caribbean.

Professor Petrosinelli’s civil practice focuses on products liability and mass tort/class action litigation. He has represented manufacturers and suppliers of chemicals, pharmaceuticals, industrial equipment, and various other products in civil cases across the United States and internationally. He has litigated a wide variety of other types of civil matters as well, including antitrust, securities, and professional liability cases. 

Professor Petrosinelli also has extensive experience in all types of government investigations and criminal litigation, including federal grand jury practice and trial and appellate work in federal and state courts. He has defended both individuals and large corporations against allegations of mail and wire fraud, false claims, government contracts fraud, FCPA violations, healthcare fraud, securities fraud, and antitrust violations. He and two of his partners successfully represented the petitioner before the U.S. Supreme Court in Cleveland v. United States, 531 U.S. 12 (2000), a leading case on the interpretation of the federal mail and wire fraud statutes.

Professor Petrosinelli has also been involved in the firm’s sports law practice. He is a certified agent of the National Basketball Players Association, and has represented athletes, professional clubs, and club executives in litigation and contract matters.